Elements and Mixtures

Question 1

a pure substance that cannot be separated into simpler substances by physical or chemical means

Answer 1

element

Question 2

a substance in which there is only one type of particle

Answer 2

pure substance

Question 3

elements that are shiny and are good conductors of thermal energy and electric current

Answer 3

metals

Question 4

elements that are dull and are poor conductors or thermal energy and electric currents

Answer 4

nonmetals

Question 5

elements that have properties of both metals and non metals. also known as semi conductors

Answer 5

metalloids

Question 6

a pure substance composed of 2 or more elements that are chemically combined

Answer 6

compound /s

Question 7

a combination of 2 or more substances that are not chemically combined

Answer 7

mixture

Question 8

a mixture that appears to be a single substance but is composed of particles of 2 or more substances that are distributed evenly amongst each other

Answer 8

solution

Question 9

A substance that is dissolved

Answer 9

solute

Question 10

The substance in which the solute is dissolved

Answer 10

solvent

Question 11

A measure of the amount of solvent dissolved in a solvent

Answer 11

concentration

Question 12

The amount of solute needed to make a saturated solution using a given amount of solvent at a certain temperature

Answer 12

solubility

Question 13

A mixture in which particles of a material are dispersed throughout a liquid or gas but are large enough that they settle out

Answer 13

suspension

Question 14

A mixture in which the particles are dispersed throughout but are not heavy enough to settle out

Answer 14

colloid

Question 15

can be hammered into thin sheets

Answer 15

malleable

Question 16

can be drawn into thin wires

Answer 16

ductible

Question 17

A process that separates a mixture based on the boiling points of components

Answer 17

distillation

Question 18

A machine that separates mixtures according to the densities of the components

Answer 18

centrifuge

Question 19

colorless quartz, pink feldspar and black Mika make up

Answer 19

granite

Question 20

lead, copper and tin are all

Answer 20

metals

Question 21

table salt, water, sugar, and baking soda are all examples of

Answer 21

compounds

Question 22

name three ways to increase the speed at which something disolves

Answer 22

mix, heat and crush

Question 23

muddy water, italian salad dressing, dirty air and liquid antacid are all examples of

Answer 23

suspensions

Question 24

milk, mayo and stick deodorant are all examples of

Answer 24

colloids

Question 25

the process of using an electric current to break compounds into simpler compounds and elements is called

Answer 25

disillation